Chain shackle



UNITED STATES PATENT OFFICE.

JOS. SNELLING, OF EAST BOSTON, MASSACHUSETTS.

CHAIN SI-IACKLE.

Specification of Letters Patent No. 19,955, dated April 13, 1858.

To all whom it may concern:

Be it known that I, JOSEPH SNELLING, of East Boston, in the county of Suolk and State of Massachusetts, have invented an Improved Chain Shackle or Link; and I do hereby declare thatthe same is fully described and represented in the following specification and the accompanying drawings, of which-- Figure l, isa side View,- and Fig. 2, a longitudinal section of the said shackle. Fig. 3, a side view of the part thereof termed the double hook, while, Figs. 4, and 5, are side and edge views of the other part or lapping piece.

In constructing the said shackle, it is to be forged or made in two parts only, such being' designated in the drawings by the letters A, and B. The part A, which is termed the double hook, consists of a rod of metal bent in a lunated or crescent shaped form or one closely resembling the letter C, it being hooked in opposite directions as shown in the drawings, at, a, and b. The two extremities of the said part A, are to be arranged with a space, c, between them suiiicient to admit a chain link to be hooked on either of the hooks, a, b. Furthermore, each hook is furnished with a tenon to extend from near its end as shown in the drawings. The lapping or cap piece B, constituting the other part of the shackle is formed to lap on the two hooks and extend into the space, c. It is also constructed lwith mortises or slots, e, c, for the reception of the two tenons, CZ, CZ, which after the cap piece has been put in place on the part, A, should project a short distance through it in order that these afterward may be riveted or hammered down in a manner to securely fasten the two parts A, and B, together.

-Both parts of the shackle, may be Inade either of wrought iron or malleable cast iron or any other suitable metal which will admit of the tenons being upset or hammered down so as to rivet the two parts A, B, together. In other respects, the two portions A, B, should be formed so that when put and fastened together, they shall have the general form of an ordinary chain link such being as exhibited in the drawings.

The shackle so constructed is designed particularly to be used on board of navigable vessels, and either for connecting two chains or reconnecting the parts of a chain when a link of the latter may become ruptured.

I do not claim a shackle or chain link made in four separate parts arranged at right angles to each other and held together by rivets, screws, and nuts, but

What I claim as my invention is- The above explained improved connecting shackle or link as made in two parts A, B, and with one of them formed in one piece as a double hook, and with a space, o, between its extremities, and with tenons, d, d, as described, and'its other part constructed so as to extend into and fill the said space and lap over the hooks and receive these tenons substantially as speciiied.

In testimony whereof I have hereunto set my signature. Y

JOSEPH SNELLING. Witnesses:

R. H. EDDY, GARDNER WALKER. 

